1 + 2 + 3 +........30 =
465
930
900
500
Common ratio of the series 1/4 + 1/2 + 1.........is 256?
10th term
11th term
12th term
9th term
If the sum of 3 numbers in A.P is 24 and their product is 440, then the numbers are
5, 8, 11
6, 9, 12
7, 10, 13
4, 8, 12
nth term of the following sequence ak, ak3, ak5.......is
akn
ak2n-1
ak2n
akn+1
If 2x + 1, x2 + x + 1 and 3x2 - 3x + 3 are consecutive terms of an A.P then x =
1, 2
2, 3
3, 4
5, 6
There are 15 terms in an A.P. Its first term is 5 and common difference is 3, then its middle term is
8
26
29
9
If 2/3, k, 5/8k are in A.P, then k =
33/16
16/3
17/33
16/33
How many terms are in the sequence 5, 8, 11..........47?
47
15
16
20
The sequence an = 2n + 1 is an A.P Then the common difference is
5
7
3
2
If -2/7, x, -7/2 are in G.P, then x =
1
-1
± 1
None of these
